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1 Ulwazi olusisiseko Umbuzo 1 Zingaphi iindlela zokwakha ezisetyenziswayo zokuncamathisela iithayile nge-adhesive yethayile? Impendulo: Inkqubo yokuncamathisela iithayile zeseramikhi yahlulwe ngokubanzi ibe ziintlobo ezintathu: indlela yokugquma umva, indlela yokugquma isiseko (ekwaziwa ngokuba yindlela yetrowel, indlela yokugquma umxube), kunye ne-combination met...Funda ngokugqithisileyo»
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1 Iingxaki eziqhelekileyo kumgubo we-wall putty: (1) Yoma ngokukhawuleza. Oku kungenxa yokuba ubungakanani bomgubo we-calcium womlotha ongezelelweyo (mkhulu kakhulu, ubungakanani bomgubo we-calcium womlotha osetyenziswa kwifomula ye-putty bunokuncipha ngokufanelekileyo) bunxulumene nesantya sokugcina amanzi kwi-fiber, kwaye ikwanxulumene...Funda ngokugqithisileyo»
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Iglu yethayile, eyaziwa ngokuba yi-ceramic tile adhesive, isetyenziswa kakhulu ukuncamathisela izinto zokuhombisa ezifana neethayile ze-ceramic, iithayile ezijongeneyo, kunye neethayile zomgangatho. Iimpawu zayo eziphambili kukuqina okuphezulu kwe-bonding, ukumelana namanzi, ukumelana nokuqandusela komkhenkce, ukumelana nokuguga okuhle kunye nolwakhiwo olulula. Yinto...Funda ngokugqithisileyo»
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I-Hydroxypropyl methylcellulose HPMC luhlobo lwe-non-ionic cellulose mixed ether. Ngokungafaniyo ne-ionic methyl carboxymethyl cellulose mixed ether, ayisebenzi neentsimbi ezinzima. Ngenxa yemilinganiselo eyahlukeneyo yomxholo we-methoxyl kunye nomxholo we-hydroxypropyl kwi-hydroxypropyl methylcellulose kunye ne-v...Funda ngokugqithisileyo»
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I-Cellulose ether yi-polymer eyenziweyo eyenziwe nge-cellulose yendalo ngokuguqulwa kweekhemikhali. I-Cellulose ether ivela kwi-cellulose yendalo. Ukuveliswa kwe-cellulose ether kwahlukile kwii-polymers zokwenziwa. Izinto zayo ezisisiseko yi-cellulose, i-compound yendalo ye-polymer. Ngenxa ye ...Funda ngokugqithisileyo»
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Isishwankathelo: 1. Isixhobo sokumanzisa nokusasaza 2. Isicoci senkunkuma 3. Isiqinisi 4. Izongezo zokwenza ifilimu 5. Isixhobo sokulwa nokugqwala, ukungunda kunye nesixhobo sokulwa nolwelwe 6. Ezinye izongezo 1 Isixhobo sokumanzisa nokusasaza: Iingubo ezisekelwe emanzini zisebenzisa amanzi njengesinyibilikisi okanye isixhobo sokusasazeka, kwaye amanzi anombane omkhulu...Funda ngokugqithisileyo»
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Iyintoni indima yesixhobo sokugcina amanzi esixutywe nezinto zomgubo we-gypsum? Impendulo: kusetyenziswa i-plastering gypsum, i-bonded gypsum, i-caulking gypsum, i-gypsum putty kunye nezinye izinto zomgubo wokwakha. Ukuze kube lula ukwakha, kongezwa izinto ezigcina amanzi ngexesha lokuvelisa ukuze kwandiswe ixesha...Funda ngokugqithisileyo»
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1. Yintoni eyona nto isetyenziswa kakhulu yi-hydroxypropyl methylcellulose (HPMC)? I-HPMC isetyenziswa kakhulu kwizixhobo zokwakha, kwiingubo, kwiiresini zokwenziwa, kwiiseramikhi, kumayeza, ekutyeni, kwimpahla, kwezolimo, kwizinto zokuthambisa, kwicuba nakwamanye amashishini. I-HPMC inokwahlulwa ibe ziinqanaba zokwakha, izinga lokutya kunye...Funda ngokugqithisileyo»
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I-Cellulose isetyenziswa kakhulu kwi-petrochemical, amayeza, ukwenza iphepha, izinto zokuthambisa, izixhobo zokwakha, njl. Sisongezelelo esisebenziseka lula kakhulu, kwaye ukusetyenziswa okuhlukeneyo kuneemfuno ezahlukeneyo zokusebenza kwiimveliso ze-cellulose. Eli nqaku lichaza kakhulu indlela yokusetyenziswa kunye nokuchonga umgangatho we-HPM...Funda ngokugqithisileyo»
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Kwizinto zokuthambisa, kukho izinto ezininzi zekhemikhali ezingenambala nezingenavumba, kodwa zimbalwa izinto ezingezizo iityhefu. Namhlanje, ndiza kwazisa, i-hydroxyethyl cellulose, exhaphake kakhulu kwizinto zokuthambisa ezininzi okanye izinto eziyimfuneko yemihla ngemihla. I-Hydroxyethyl Cellulose【I-Hydroxyethyl Cellulose】 Eyaziwa ngokuba yi-(HEC) yi-white ...Funda ngokugqithisileyo»
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Isishwankathelo: esibizwa ngokuba yi-HPMC, umgubo omhlophe okanye ongekho mhlophe okanye onamaqhekeza. Kukho iintlobo ezininzi ze-cellulose kwaye zisetyenziswa kakhulu, kodwa siqhagamshelana kakhulu nabathengi abakwishishini lezixhobo zokwakha zomgubo owomileyo. I-cellulose eqhelekileyo ibhekisa kwi-hypromellose. Inkqubo yemveliso: Eyona r...Funda ngokugqithisileyo»
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I-CMC idla ngokuba yi-anionic polymer compound elungiselelwe ngokuphendula i-cellulose yendalo nge-caustic alkali kunye ne-monochloroacetic acid, enobunzima be-molecular obuyi-6400 (± 1 000). Iimveliso eziphambili yi-sodium chloride kunye ne-sodium glycolate. I-CMC yeyokuguqulwa kwe-cellulose yendalo. Isebenza...Funda ngokugqithisileyo»